Threshing-machine.



G. A. GAYLORD & G. W. BORDER.

THRESHING MACHINE.

APPLICATION FILED MAR. 7. was.

1,282,408, Patented Oct. 22, 1918.

INVENTORS:

eorgei. Ga (and. Qeorge WE dew.

52M 0 BY ATTORNEY G. A. GAYLORD & G. W. BORDER.

Paten t-ed Oct. 22, 1918.

2 SHEETS-SHEET 2- INVENTORS: 0. l 0 rd. pp .BOraLGr. $5

' ATTORNEY.

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GEORGE A. GAYLORD, or EDMOND, AND GEORGE W. BORDER, or WELLSTON,

. OKLAHOMA.

THRESHING-MACHINE.

Specification of Letters Patent.

Patented Oct. 22, 191s.

Application filed March 7, 1918. Serial No. 220,936.

To all whom it may concern:

' Be it'known that we,GEoRGE A. GAYLORD, a citizen of the United States, residing at Edmond, in the State of Oklahoma and county of Oklahoma, and GEORGE W. BORDER, a citizen of the United States, residing 'at Wellston, in the county of Lincoln and State of Oklahoma, have invented certain new and useful Improvements in Threshing-Machines, of which the following is a specification, reference being had to the accompanying drawings.

The invention pertains to threshing machines, and more particularly to the cylinder and concave of such machines.

The object of the invention is to provide a machine suitable for threshing castor beans.

The drawings show one of the practical forms in which the invention may be embodied.

Figure 1 is a sectional view of that portion of the machine to which the invention pertains,'the left-hand end of the figure being taken as the front of the machine for purposes of this description. Fig. 2 is a viewof anintact castor bean hull.

Fig. 3 is a similar view with the hull broken open and the beans released.

F i 4 is an enlarged reproduction of a portlon of Fig. 1, but with a retainer added to hold parts in assemblage.

Fig. 5 is an elevation view of a cylinder on the same scale as Fig. l, the view being taken in the direction of the arrow 5 of Fig. 1 and showing the retainer which appears in Fig. 3.

Like characters of reference designate like parts in alLthe figures.

The machine shown includes the usual feeding hopper 10, the revolving cylinder 11' which is journaled across the lower rear end of said hopper, and the stationary concave 12 which is mounted under the cylinder 10 and co-acts therewith in threshing.

The parts thus described do not differ materially from those found in the common threshing machine.

In carrying out the object stated, the cylinder 11 is not provided with the usual teeth or spikes, but has its peripheral surface corrugated as shown.

The corrugations 13 of the cylinder 11 may be formed in any suitable manner, such,

for example, as by forming them in a sheet 1 of metal 14 and then wrappingsaidsheet around the cylinder as shown.-

- In fastening the sheet of metal 13 to the cylinder 11, bolts 15 may be used to secure it to the longitudinal slats 16 ofthe cylinder frame-work; and metal bands 17, shown only in Figs. 4: andv5,may also be slipped over the sheet 14: at the ends of the cylinder, bolts 18 being employed to hold the bands in place. x

This method of securing the metal sheet 14 in place holds it against centrifugal force when the cylinder is rapidly revolved.

The concave 12 is also provided with a longitudinally-concaved surface adapted to co-act with the corrugated surface of the cylinder 11in crushing the hulls 19 of the beans; and the corrugations of said'concave may be formed by corrugating a" sheet of metal 20 and securely mounting it on said concave as shown.

From center to center in a circumferential direction the corrugations 13 of the cylinder 11 may be spaced any suitable distance, for example three-fourths inches as in a machine built and operated by the inventors; and the corrugations 21 of the concave 12 may be spaced the same number of degrees apart as those ofthe cylinder.

To support the concave 12, a rearwardlyextending arm 22 at each of its ends is pivoted to its respective side wall 23 of the machine, as at 24c, and the front edge of the concave is supported by eccentric cams 25 on a revoluble shaft26 which is j ournaled in said side walls 23.

By revolving the shaft 26 and cams 25, the distance betwee'njthe cylinder lland concave 12 may be adjusted to the size of the hulls 19 to be thrashed; and the arms22 of the concave may be long enough so that an adjusting movement of'the concave will not impart to it too much revolving movement and affect its concentricity with the cylinder.

In operating the machine, good results have been obtained by setting the concave 12 and cylinder 11 just close enough together so that with the crests 27 of the cylinder corrugations 13 facing the crests 28 of the concave corrugations 21 as in Figs. 1 and 4: the hulls 19 caught between said crests will be crushed just enough to fly apart and release the beans 29.

The friction of the air on the corrugations I It; hf the cylinder .2 11, together the molecular .in er ck. 9f t emai in sa d 10' ing the hulls 19 to be drawn through between said cylinder and concave :and changed imposition incpassing each corrugation.

The result is that. the hulls 19 are opened perfectly and the beans 29 are freed with; out: any portions of the hulls clinging to them; r r

:The thresh'ed' mixture of hulls l9 and beans 29 isthrown rearward in the machine by the cylinder 11 and the hullsand beans are separated by parts of the machine-well known in the art. Y In order to-produ'ce a stronger draft of air through between the cylinder 11 and concave 12":than;:would befproduced rby 'friction of the airon :the' corrugations 13" of; the cylinder,;riinproved -means; are provided for forcingiicurrents of airradially ;o ut of the cylinderif I In: iprovidingwthismeans, the corrugated sheet-metal covering -14 of the cylinder ;11 is provided at intervals withflopenings- 31 each-of which-is formed by-cutting-loose a smallforwardly-proj ecting wing portion 32 of the-rsheet materialin the bottom or trough 33 bfcertain Jones of; the corrugations 13 and bending "said' wing portions inwardasshown. As the; cylinderl-l is-rapidly-revolved in the direction indicated,'the gathering effect of the wing portions 32'on-the inert air 'insid'e the' cylinder jdraws said air otorci-blv joutwa'rd- "throughthe openings '31 against the concave 12, with the; result that the airbetween-said concave and cylinder is slightly compressed andtheeddying movement of the air in the troughs -of the corrugations 21 increased. v 7

To aid the feeding movement of'the hulls '19 through between the-cylinder 11 and concave 12, the cylinder may be provided at .Copies of this patent may be .obtained for y Lesa roe intervals with radial pins or spikes 34 which ,ip ieqt a sh rt distance ou ward .imm the su rface of-the sheet-metal coveringfl l.

"The front edge of the concave 12 may supportthe rear or lower edge of the feedboard"35 ,so that thelatter may follow the adjusting novements of the concave w 'IrIavin'g'thus described the inventiony-we I ,"cla1m:

1. In a threshing machine, a cylinder having its peripherallsurface; longitudinally corrugated,'.-. andzmaij concavelongitudinally r g ed; thesur acebffi eryli denzbei g provided with radial; projections to aid'ijn the e i g;' nvem n cefsftheii xt t e A threshedf a 2:111 h h ngm ch nera" having a slongit d na y cor ugat d rp r ph eral wall,- sa-id' wall beingprovided-rwith;-ra-

dially 1 proj ecting'. spikes, andgal'longitudi' 7:

y wr 'ug t -e neav adar with the cylinden 3 3. In a threshing ni acl1;1 ne, a

, rcoaet cyl nd ing' al ng a y-co u te per phera wall, said 'wallfhaving out let; -openings for.

air, means on the inner side-jof the ;l'l' "ZfOI' forcing anoutward-draft Cir airft'hrongh said outlet openings as the cylinder revolves, and aconcave adapted to too-act -;wit h{"the cylinden; v

4. In a threshing machine, a cyli11der;hav-' h inga longitudinally corrugated peripheral wall, said 'wallhaving outlet openings for air and having-at each-ofisaid openings an inwardly curved gathering wing, and a" coni cave adapted to oo-act with 'thejcylinderw 5. Inja threshing machine, a cylinder' arranged to be revolved, the cylinder haying a longitudinally corrugated tperipherahwall, said wall; having, outletj openings for flair,

each opening'havingat-its ed-ge-fafwing so' shapedand arranged that as the ,cylinderrevo lves' said wing gathersa-i'rfrom T vvithin said 'cyllnder and-forces it; out through {said opening, 1 and a longitudinally -;-corrugated concave arranged to co-ac't' with the cylinder.

Witness our hands this 26'ida/y of February, 1918.

five cents each, Joyaddiessingthe.Commissioner otlratentm ,Washingtgn,D.G3

GEORGEreindeer 

